For some reason I haven't ever been very good with trusting men for some reason and I have a boyfriend and he's wonderful but I lack trust for him and I want us to work. And I don't know why I don't!

Might be immaturity... something most people grow out of? How old are you as that has a big influence on what might be behind this. And there are other factors that come into play as well.

No matter how much you may "want" this to work... this lack of trust or jealousy towards others WILL sabotage the relationship over time.

Im 22 and how can I trust him?

Who has let your down in the past?

You simply do... you find out what is behind your personal issues here... be it jealousy, clinginess or whatever... (seriously... it CAN be a lot of reasons). Most importantly face up with the fact as an adult you own whatever your issues are (which I think you already do).

You have to have a long introspective look into your feelings and see if you can figure out what this stems from. You don't have a lifetime to do this because he's going to eventually get ticked off and walk away. Nobody wants to be or needs to be on the receiving end of that... male or female

I tend to view this as an indication that the relationship isn't as perfect as you might think it is (which is usually clouded by unrealistic expectations) and it's a way of your subconscious throwing you hints to see things for what they are.

By that I mean if the relationship is meant to be... you don't have to work hard at it, things just fall into place like they were meant to be.

If you have to fight, and struggle then its not a good match because people don't change... they always slip back into their natural routines. So you have to be happy with people as they are... and trust me... you don't find them as quickly as you think... too many young people are too willing to settle for close enough... rather than holding out for the right person. That's why the divorce rate is as high as it is.